一种PTFE塑料转动套筒机械加工方法,包括以下步骤:机床夹持坯件,粗车转动套筒的外圆和内孔;半精车转动套筒各档外圆、内孔和端面,留少量精加工余量最后加工;根据转动套筒的长度,在坯件要割切的位置用割槽刀预车削槽,保证槽的槽底至内孔的孔壁有合适的厚度; A method for machining a PTFE plastic rotating sleeve comprises the following steps: a machine tool clamps a blank, an outer circle and an inner hole of a rough turning rotating sleeve; A small amount of finishing allowance final processing; according to the length of the rotating sleeve, cutting position in the blank to be cut with a slotted cutter pre-cut groove to ensure that the slot bottom to the inner wall of the hole wall has a suitable thickness;